'''用户账户相关的功能：注册、短信、登录、注销'''
import uuid
import datetime
from django.shortcuts import HttpResponse, render, redirect
from web.forms.account import RegisterModelForm, SendSmsForm, LoginSmsForm,LoginForm
from django.http import JsonResponse
from django.db.models import Q
from utils import encrypt
from web import models
def register(request):
    if request.method == 'GET':
        form = RegisterModelForm()
        return render(request, 'register.html', {'form':form})
    # print(request.POST)
    form = RegisterModelForm(data=request.POST)
    if form.is_valid():
        # 验证通过，写入数据库（密码要是密文）
        # instance = form.save 在数据库中新增一条数据，并将新增的这条数据赋值给instance
        # form.save()用户表中新增一条数据（注册）
        instance = form.save()

        # 创建交易记录
        # 方式一
        policy_object = models.PricePolicy.objects.filter(category=1, title="个人免费版").first()
        models.Transaction.objects.create(
            status=2,
            order=str(uuid.uuid4()),    # 随机字符串
            user=instance,
            price_policy=policy_object,
            count=0,
            price=0,
            start_datetime=datetime.datetime.now()
        )

        # 方式二
        return JsonResponse({'status': True, 'data': '/login/'})
    return JsonResponse({'status': False, 'error': form.errors})

def send_sms(request):
    ''' 发送短信 '''
    form = SendSmsForm(request,data=request.GET)
    if form.is_valid():
        return JsonResponse({'status': True})
    return JsonResponse({'status': False,  'error': form.errors})

def login_sms(request):
    ''' 短信登录 '''
    if request.method == 'GET':
        form = LoginSmsForm()
        return render(request, 'login_sms.html', {'form': form})
    form = LoginSmsForm(request.POST)
    if form.is_valid():
        mobile_phone = form.cleaned_data['mobile_phone']
        user_object = models.UserInfo.objects.filter(mobile_phone=mobile_phone).first()
        request.session['user_id'] = user_object.id
        # 写入名为userid的session
        request.session.set_expiry(60 * 60 * 24 * 14)
        return JsonResponse({"status": True, 'data': "/index/"})
    return JsonResponse({"status": False, 'error': form.errors})

def login(request):
    if request.method == 'GET':
        form = LoginForm(request)
        return render(request,'login.html',{'form':form})
    form = LoginForm(request,request.POST)
    if form.is_valid():
        username = form.cleaned_data['username']
        password = form.cleaned_data['password']
        # user_object = models.UserInfo.objects.filter(username=username,password=password).first()
        # （手机=username & pwd=pwd）| （邮箱=username & pwd=pwd）
        user_object = models.UserInfo.objects.filter(Q(email=username) | Q(mobile_phone=username)).filter(
            password=password).first()
        if user_object:
            request.session['user_id'] = user_object.id  # 写入名为userid的session
            request.session.set_expiry(60 * 60 * 24 * 14)
            # 用户名密码正确
            return redirect('index')
        form.add_error('username','用户名密码错误')
    return render(request,'login.html',{'form':form})



def image_code(request):
    '''生成图片验证码'''
    from utils.image_code import check_code
    from io import BytesIO
    image_object,code = check_code()

    request.session['image_code'] = code
    request.session.set_expiry(60)  # 主动修改session的过期时间

    stream = BytesIO()
    image_object.save(stream, 'png')

    return HttpResponse(stream.getvalue())

def logout(request):
    request.session.flush()
    return redirect('index')

